In my opinion the shortest and easiest solution would be:
int length , n;
printf("Enter a number: ");
scanf("%d", &n);
length = 0;
while (n > 0) {
n = n / 10;
length++;
}
printf("Length of the number: %d", length);
This should work:
<script type="text/javascript">
var testing='this is d23553 test 32533\n31203 not 333';
var r = new RegExp(/(?:^|[^\d])(\d{5})(?:$|[^\d])/mg);
var matches = [];
while ((match = r.exec(testing))) matches.push(match[1]);
alert('Found: '+matches.join(', '));
</script>
It's all based on your requirement. if you are developing a small scale app and covers only specific region (target audience), you can choose BIGINT to store only numbers since VARCHAR consumes more byte than BIGINT ( having optimal memory usage design matters ). but if you are developing a large scale app and targets global users and you have enough database capabilities to store data, you can definitely choose VARCHAR.
Writing a custom JsonConverter is another approach mentioned in similar questions. However, due to nature of how JsonConverter
is designed, using that approach for this question is tricky, as you need to be careful with the WriteJson
implementation to avoid getting into infinite recursion: JSON.Net throws StackOverflowException when using [JsonConvert()].
One possible implementation:
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
//JToken t = JToken.FromObject(value); // do not use this! leads to stack overflow
JsonObjectContract contract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(value.GetType());
writer.WriteStartObject();
writer.WritePropertyName(value.GetType().Name);
writer.WriteStartObject();
foreach (var property in contract.Properties)
{
// this removes any property with null value
var propertyValue = property.ValueProvider.GetValue(value);
if (propertyValue == null) continue;
writer.WritePropertyName(property.PropertyName);
serializer.Serialize(writer, propertyValue);
//writer.WriteValue(JsonConvert.SerializeObject(property.ValueProvider.GetValue(value))); // this adds escaped quotes
}
writer.WriteEndObject();
writer.WriteEndObject();
}
If you have created a tag called release01
in a Git repository you would remove it from your repository by doing the following:
git tag -d release01
git push origin :refs/tags/release01
To remove one from a Mercurial repository:
hg tag --remove featurefoo
Please reference https://confluence.atlassian.com/pages/viewpage.action?pageId=282175551
Javadoc to the rescue :
A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace
nextLine
is probably the method you should use.
ES6 style
function gcd(...numbers) {
return numbers.reduce((a, b) => b === 0 ? a : gcd(b, a % b));
}
function lcm(...numbers) {
return numbers.reduce((a, b) => Math.abs(a * b) / gcd(a, b));
}
On any linux system with the NVIDIA driver installed and loaded into the kernel, you can execute:
cat /proc/driver/nvidia/version
to get the version of the currently loaded NVIDIA kernel module, for example:
$ cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 304.54 Sat Sep 29 00:05:49 PDT 2012
GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
Usually I use this code (into a VBA macro) for getting a cell's value from another cell's value from another sheet:
Range("Y3") = ActiveWorkbook.Worksheets("Reference").Range("X4")
The cell Y3 is into a sheet that I called it "Calculate" The cell X4 is into a sheet that I called it "Reference" The VBA macro has been run when the "Calculate" in active sheet.
inline
import functools
#: not key(c) in d
d = {"a": "avalue", "b": "bvalue", "d": "dvalue"}
entitiesToREmove = ('a', 'b', 'c')
#: python2
map(lambda x: functools.partial(d.pop, x, None)(), entitiesToREmove)
#: python3
list(map(lambda x: functools.partial(d.pop, x, None)(), entitiesToREmove))
print(d)
# output: {'d': 'dvalue'}
You are trying to group code according to struct. C grouping is by file. You put all the functions and internal variables in a header or a header and a object ".o" file compiled from a c source file.
It is not necessary to reinvent object-orientation from scratch for a C program, which is not an object oriented language.
I have seen this before. It is a strange thing. Coders, some of them, have an aversion to passing an object they want to change into a function to change it, even though that is the standard way to do so.
I blame C++, because it hid the fact that the class object is always the first parameter in a member function, but it is hidden. So it looks like it is not passing the object into the function, even though it is.
Client.addClient(Client& c); // addClient first parameter is actually
// "this", a pointer to the Client object.
C is flexible and can take passing things by reference.
A C function often returns only a status byte or int and that is often ignored. In your case a proper form might be
err = addClient( container_t cnt, client_t c);
if ( err != 0 )
{ fprintf(stderr, "could not add client (%d) \n", err );
addClient would be in Client.h or Client.c
Do it this way (make necessary changes in code)..
SqlConnection con = new SqlConnection(GetConnectionString());
con.Open();
SqlCommand cmd = new SqlCommand("CheckUser", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlParameter p1 = new SqlParameter("username", username.Text);
SqlParameter p2 = new SqlParameter("password", password.Text);
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
SqlDataReader rd = cmd.ExecuteReader();
if(rd.HasRows)
{
//do the things
}
else
{
lblinfo.Text = "abc";
}
I came across this because I just had problems creating a remote connection and couldn't understand why setting up 1433 port in firewall is not doing the job. I finally have the full picture now, so I thought I should share.
First of all is a must to enable "TCP/IP" using the SQL Server Configuration Manager under Protocols for SQLEXPRESS!
When a named instance is used ("SQLExpress" in this case), this will listen on a dynamic port. To find this dynamic port you have couple of options; to name a few:
checking ERRORLOG
of SQL Server located in '{MS SQL Server Path}\{MS SQL Server instance name}\MSSQL\Log'
(inside you'll find a line similar to this: "2013-07-25 10:30:36.83 Server Server is listening on [ 'any' <ipv4> 51118]"
--> so 51118 is the dynamic port in this case.
checking registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\{MSSQL instance name}\MSSQLServer\SuperSocketNetLib\Tcp\IPAll
, for my case TcpDynamicPorts=51118
.
Edit: {MSSQL instance name}
is something like: MSSQL10_50.SQLEXPRESS
, not only SQLEXPRESS
Of course, allowing this TCP port in firewall and creating a remote connection by passing in: "x.x.x.x,51118"
(where x.x.x.x is the server ip) already solves it at this point.
But then I wanted to connect remotely by passing in the instance name (e.g: x.x.x.x\SQLExpress
). This is when SQL Browser service comes into play. This is the unit which resolves the instance name into the 51118 port. SQL Browser service listens on UDP port 1434 (standard & static), so I had to allow this also in server's firewall.
To extend a bit the actual answer: if someone else doesn't like dynamic ports and wants a static port for his SQL Server instance, should try this link.
To read you should create an instance of ifsteam and not ofstream.
ifstream iusrfile;
You should open the file in read mode.
iusrfile.open("usrfile.txt", ifstream::in);
Also this statement is not correct.
cout<<iusrfile;
If you are trying to print the data you read from the file you should do:
cout<<usr;
You can read more about ifstream and its API here
if you're using jQuery you would have:
$('#elementId').change(function() { alert('Do Stuff'); });
or MS AJAX:
$addHandler($get('elementId'), 'change', function(){ alert('Do Stuff'); });
Or in the raw HTML of the element:
<input type="text" onchange="alert('Do Stuff');" id="myElement" />
After re-reading the question I think I miss-read what was to be done. I've never found a way to update a DOM element in a manner which will force a change event, what you're best doing is having a separate event handler method, like this:
$addHandler($get('elementId'), 'change', elementChanged);
function elementChanged(){
alert('Do Stuff!');
}
function editElement(){
var el = $get('elementId');
el.value = 'something new';
elementChanged();
}
Since you're already writing a JavaScript method which will do the changing it's only 1 additional line to call.
Or, if you are using the Microsoft AJAX framework you can access all the event handlers via:
$get('elementId')._events
It'd allow you to do some reflection-style workings to find the right event handler(s) to fire.
It depends on the server configuration or the relevant directives session.gc_maxlifetime in php.ini
.
Typically the default is 24 minutes (1440 seconds), but your webhost may have altered the default to something else.
File.Copy(@"C:\oldFile.txt", @"C:\newFile.txt", true);
Please do not forget to overwrite the previous file! Make sure you add the third param., by adding the third param, you allow the file to be overwritten. Else you could use a try catch for the exception.
Regards, G
OR you could just use javac file1.java
and then also use javac file2.java
afterwards.
Here is a list of special characters that you can escape when creating a string literal for JSON:
\b Backspace (ASCII code 08) \f Form feed (ASCII code 0C) \n New line \r Carriage return \t Tab \v Vertical tab \' Apostrophe or single quote \" Double quote \\ Backslash character
Reference: String literals
Some of these are more optional than others. For instance, your string should be perfectly valid whether you escape the tab character or leave in a tab literal. You should certainly be handling the backslash and quote characters, though.
You have to go to the sheet of db to get the first blank row, you could try this method.
Sub DesdeColombia ()
Dim LastRowFull As Long
'Here we will define the first blank row in the column number 1 of sheet number 1:
LastRowFull = Sheet1.Cells(Rows.Count,1).End(xlUp).Offset(1,0).Row
'Now we are going to insert information
Sheet1.Cells(LastRowFull, 1).Value = "We got it"
End Sub
In my case:
sudo -E add-apt-repository ppa:linuxuprising/java
sudo apt-get update
sudo apt install oracle-java12-installer
that works fine
I had a nested directory structure i.e. I had multiple directories inside the main directory that contained the python modules.
I added the following script to my __init__.py
file to import all the modules
import glob, re, os
module_parent_directory = "path/to/the/directory/containing/__init__.py/file"
owd = os.getcwd()
if not owd.endswith(module_parent_directory): os.chdir(module_parent_directory)
module_paths = glob.glob("**/*.py", recursive = True)
for module_path in module_paths:
if not re.match( ".*__init__.py$", module_path):
import_path = module_path[:-3]
import_path = import_path.replace("/", ".")
exec(f"from .{import_path} import *")
os.chdir(owd)
Probably not the best way to achieve this, but I couldn't make anything else work for me.
{% for _ in ''|center:13 %}
{{ forloop.counter }}
{% endfor %}
One solution is to wrap it in a subquery
SELECT *
FROM
(
SELECT COUNT(column1),column1 FROM table GROUP BY column1
UNION ALL
SELECT COUNT(column2),column2 FROM table GROUP BY column2
UNION ALL
SELECT COUNT(column3),column3 FROM table GROUP BY column3
) s
I got this error message with vs2015, ssdt 14.1.xxx, ssrs. For me I think it was something different than described above with a 2 column, same name problem. I added this report, then deleted the report, then when I tried to add the query back in the ssrs wizard I got this message, " An error occurred while the query design method was being saved :invalid object name: tablename" . where tablename was the table on the query the wizard was reading. I tried cleaning the project, I tried rebuilding the project. In my opinion Microsoft isn't completing cleaning out the report when you delete it and as long as you try to add the original query back it won't add. The way I was able to fix it was to create the ssrs report in a whole new project (obviously nothing wrong with the query) and save it off to the side. Then I reopened my original ssrs project, right clicked on Reports, then Add, then add Existing Item. The report added back in just fine with no name conflict.
The command line is correct and works on a valid video file. I would make sure that you have installed the correct library to work with mp3, install lame o probe with another audio codec.
Usually
ffmpeg -formats
or
ffmpeg -codecs
would give sufficient information so that you know more.
As long as both are referenced by the web page, yes.
You simply call the functions as if they are in the same JS file.
It seems that your date column is not of type datetime but varchar. You have to convert it to datetime when sorting:
select date
from tbemp
order by convert(datetime, date, 103) ASC
style 103 = dd/MM/yyyy (
msdn
)
I have a MySQL table:
CREATE TABLE `content_html` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`id_box_elements` int(11) DEFAULT NULL,
`id_router` int(11) DEFAULT NULL,
`content` mediumtext COLLATE utf8_czech_ci NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `id_box_elements` (`id_box_elements`,`id_router`)
);
and the UNIQUE KEY works just as expected, it allows multiple NULL rows of id_box_elements and id_router.
I am running MySQL 5.1.42, so probably there was some update on the issue discussed above. Fortunately it works and hopefully it will stay that way.
Look at the filter
function.
If you just need a 1-pole low-pass filter, it's
xfilt = filter(a, [1 a-1], x);
where a = T/τ, T = the time between samples, and τ (tau) is the filter time constant.
Here's the corresponding high-pass filter:
xfilt = filter([1-a a-1],[1 a-1], x);
If you need to design a filter, and have a license for the Signal Processing Toolbox, there's a bunch of functions, look at fvtool and fdatool.
here is the commend which is tested Sqlcmd -E -S "server name" -d "DB name" -i "SQL file path"
-E stand for windows trusted
speaking from computation and memory bound point of view (scientific computing) 4000 threads will make application run really slow. Part of the problem is a very high overhead of context switching and most likely very poor memory locality.
But it also depends on your architecture. From where I heard Niagara processors are suppose to be able to handle multiple threads on a single core using some kind of advanced pipelining technique. However I have no experience with those processors.
MacOS uses /usr/libexec/java_home to find the current Java Version. One way to bypass is to change the plist file as explained by @void256 above.
Other ways is to take the backup of the java_home and replace it with your own script java_home having the code
echo $JAVA_HOME
Now export the JAVA_HOME to the desired version of the SDK by adding the following commands to the ~/.bash_profile. export JAVA_HOME="/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home" launchctl setenv JAVA_HOME $JAVA_HOME /// Make the environment variable global
Run the command source ~/.bash_profile to the run the above commands.
Anytime one needs to change the JAVA_HOME he can reset the JAVA_HOME value in the ~/.bash_profile file.
''.join(filter(str.isdigit, "+123-456-7890"))
If you're inclined to start using a lot of JavaScript on your site, jQuery makes playing with the DOM extremely simple.
http://docs.jquery.com/Manipulation
Makes it as simple as: $("#field-name").text("Some new text.");
AntiforgeryToken is still a pain, none of the examples above worked word for word for me. Too many for's there. So I combined them all. Need a @Html.AntiforgeryToken in a form hanging around iirc
Solved as so:
function Forgizzle(eggs) {
eggs.__RequestVerificationToken = $($("input[name=__RequestVerificationToken]")[0]).val();
return eggs;
}
$.ajax({
url: url,
type: 'post',
data: Forgizzle({ id: id, sweets: milkway }),
});
When in doubt, add more $ signs
My issue was that it was in my init(). Probably the "weak self" killed him while the init wasn't finished. I moved it from the init and it solved my issue.
You need to use the .format()
function.
MM
- Month number
MMM
- Month word
var date = moment("2014-02-27T10:00:00").format('DD-MM-YYYY');
var dateMonthAsWord = moment("2014-02-27T10:00:00").format('DD-MMM-YYYY');
Technically, to repair your statement, you can add LIMIT 1
to the subquery to ensure that at most 1 row is returned. That would remove the error, your code would still be nonsense.
... 'SELECT store_key FROM store LIMIT 1' ...
Practically, you want to match rows somehow instead of picking an arbitrary row from the remote table store
to update every row of your local table customer
.
Your rudimentary question doesn't provide enough details, so I am assuming a text column match_name
in both tables (and UNIQUE
in store
) for the sake of this example:
... 'SELECT store_key FROM store
WHERE match_name = ' || quote_literal(customer.match_name) ...
But that's an extremely expensive way of doing things.
Ideally, you should completely rewrite the statement.
UPDATE customer c
SET customer_id = s.store_key
FROM dblink('port=5432, dbname=SERVER1 user=postgres password=309245'
,'SELECT match_name, store_key FROM store')
AS s(match_name text, store_key integer)
WHERE c.match_name = s.match_name
AND c.customer_id IS DISTINCT FROM s.store_key;
This remedies a number of problems in your original statement.
Obviously, the basic problem leading to your error is fixed.
It's almost always better to join in additional relations in the FROM
clause of an UPDATE
statement than to run correlated subqueries for every individual row.
When using dblink, the above becomes a thousand times more important. You do not want to call dblink()
for every single row, that's extremely expensive. Call it once to retrieve all rows you need.
With correlated subqueries, if no row is found in the subquery, the column gets updated to NULL, which is almost always not what you want.
In my updated form, the row only gets updated if a matching row is found. Else, the row is not touched.
Normally, you wouldn't want to update rows, when nothing actually changes. That's expensively doing nothing (but still produces dead rows). The last expression in the WHERE
clause prevents such empty updates:
AND c.customer_id IS DISTINCT FROM sub.store_key
With shortcuts available, the quickest way is to
Open the Developer Tools
Open the Command Menu
Type print
and select Emulate CSS print media type from the context menu
Looking at the excellent and currently most-upvoted answer by lmeurs, I think this solution might also remain stable over time.
print(os.path.join(os.path.dirname(__file__)))
You can also use this way
Most brew install issues with node are caused by permission errors or having node previously installed and then trying to install it via brew. The solution that worked for me finally was:
WARNING: This will uninstall nodejs (multiple versions) use with caution:
Remove node via brew:
brew uninstall node
also did via force:
brew uninstall node --force
To use the script Source: Remove node:
curl -O https://raw.githubusercontent.com/DomT4/scripts/master/OSX_Node_Removal/terminatenode.sh
Then:
chmod +x /path/to/terminatenode.sh
Then:
./terminatenode.sh .
Then make sure to do the following command:
chown $USER /usr/local
Then do a brew update (keep doing this until all things are updated):
brew update
Clean brew up and run update again (might be redundant) and run doctor to make sure things are in place:
brew cleanup; brew update; brew doctor
And finally install node via brew (verbose):
brew install -v node
Interaction of Javascript and PHP
We all grew up knowing that Javascript ran on the Client Side (ie the browser) and PHP was a server side tool (ie the Server side). CLEARLY the two just cant interact.
But -- good news; it can be made to work and here's how.
The objective is to get some dynamic info (say server configuration items) from the server into the Javascript environment so it can be used when needed - - typically this implies DHTML modification to the presentation.
First, to clarify the DHTML usage I'll cite this DHTML example:
<script type="text/javascript">
function updateContent() {
var frameObj = document.getElementById("frameContent");
var y = (frameObj.contentWindow || frameObj.contentDocument);
if (y.document) y = y.document;
y.body.style.backgroundColor="red"; // demonstration of failure to alter the display
// create a default, simplistic alteration usinga fixed string.
var textMsg = 'Say good night Gracy';
y.write(textMsg);
y.body.style.backgroundColor="#00ee00"; // visual confirmation that the updateContent() was effective
}
</script>
Assuming we have an html file with the ID="frameContent" somewhere, then we can alter the display with a simple < body onload="updateContent()" >
Golly gee; we don't need PHP to do that now do we! But that creates a structure for applying PHP provided content.
We change the webpage in question into a PHTML type to allow the server side PHP access to the content:
**foo.html becomes foo.phtml**
and we add to the top of that page. We also cause the php data to be loaded into globals for later access - - like this:
<?php
global $msg1, $msg2, $textMsgPHP;
function getContent($filename) {
if ($theData = file_get_contents($filename, FALSE)) {
return "$theData";
} else {
echo "FAILED!";
}
}
function returnContent($filename) {
if ( $theData = getContent($filename) ) {
// this works ONLY if $theData is one linear line (ie remove all \n)
$textPHP = trim(preg_replace('/\r\n|\r|\n/', '', $theData));
return "$textPHP";
} else {
echo '<span class="ERR">Error opening source file :(\n</span>'; # $filename!\n";
}
}
// preload the dynamic contents now for use later in the javascript (somewhere)
$msg1 = returnContent('dummy_frame_data.txt');
$msg2 = returnContent('dummy_frame_data_0.txt');
$textMsgPHP = returnContent('dummy_frame_data_1.txt');
?>
Now our javascripts can get to the PHP globals like this:
// by accessig the globals var textMsg = '< ? php global $textMsgPHP; echo "$textMsgPHP"; ? >';
In the javascript, replace
var textMsg = 'Say good night Gracy';
with: // using php returnContent()
var textMsg = '< ? php $msgX = returnContent('dummy_div_data_3.txt'); echo "$msgX" ? >';
Summary:
To be resolved: calling updateContent() with a filename and using it via onClick() instead of onLoad()
An example could be provided in the Sample_Dynamic_Frame.zip for your inspection, but didn't find a means to attach it
please set dataType config property in your ajax call and give it another try!
another point is you are using ajax call setup configuration properties as string and it is wrong as reference site
$.ajax({
url : 'http://voicebunny.comeze.com/index.php',
type : 'GET',
data : {
'numberOfWords' : 10
},
dataType:'json',
success : function(data) {
alert('Data: '+data);
},
error : function(request,error)
{
alert("Request: "+JSON.stringify(request));
}
});
I hope be helpful!
Adrian's answer threw "fatal: This operation must be run in a work tree." The following is what worked for us.
git worktree add <new-dir> --no-checkout --detach
cd <new-dir>
git checkout <some-ref> -- <existing-dir>
Notes:
--no-checkout
Do not checkout anything into the new worktree.--detach
Do not create a new branch for the new worktree.<some-ref>
works with any ref, for instance, it works with HEAD~1
.git worktree prune
. :: savevars.bat
:: Use $ to prefix any important variable to save it for future runs.
@ECHO OFF
SETLOCAL
REM Load variables
IF EXIST config.txt FOR /F "delims=" %%A IN (config.txt) DO SET "%%A"
REM Change variables
IF NOT DEFINED $RunCount (
SET $RunCount=1
) ELSE SET /A $RunCount+=1
REM Display variables
SET $
REM Save variables
SET $>config.txt
ENDLOCAL
PAUSE
EXIT /B
Output:
$RunCount=1
$RunCount=2
$RunCount=3
The technique outlined above can also be used to share variables among multiple batch files.
I install go launcher on mine, (Windows 8)=> preferences => Screens => Screen orientation => vertical (disable QWE keyboard)
Override annotation is used to take advantage of the compiler, for checking whether you actually are overriding a method from parent class. It is used to notify if you make any mistake like mistake of misspelling a method name, mistake of not correctly matching the parameters
try changing in the gradle file the targetSdkVersion to 8
targetSdkVersion 8
Apart from other answer There are calculator provided by Youtube to check your usage. It is good to identify your usage. https://developers.google.com/youtube/v3/determine_quota_cost
This works perfectly for me, not matter how the date was coded previously.
library(lubridate)
data$created_date1 <- mdy_hm(data$created_at)
data$created_date1 <- as.Date(data$created_date1)
You could achieve this without having to import traceback:
try:
func1()
except Exception as ex:
trace = []
tb = ex.__traceback__
while tb is not None:
trace.append({
"filename": tb.tb_frame.f_code.co_filename,
"name": tb.tb_frame.f_code.co_name,
"lineno": tb.tb_lineno
})
tb = tb.tb_next
print(str({
'type': type(ex).__name__,
'message': str(ex),
'trace': trace
}))
Output:
{
'type': 'ZeroDivisionError',
'message': 'division by zero',
'trace': [
{
'filename': '/var/playground/main.py',
'name': '<module>',
'lineno': 16
},
{
'filename': '/var/playground/main.py',
'name': 'func1',
'lineno': 11
},
{
'filename': '/var/playground/main.py',
'name': 'func2',
'lineno': 7
},
{
'filename': '/var/playground/my.py',
'name': 'test',
'lineno': 2
}
]
}
Hide php warnings in file
error_reporting(0);
Assuming cloud is int cloud[10]
you can do it like this:
int *p = max_element(cloud, cloud + 10);
sortedWith
+ compareBy
(taking a vararg of lambdas) do the trick:
val sortedList = list.sortedWith(compareBy({ it.age }, { it.name }))
You can also use the somewhat more succinct callable reference syntax:
val sortedList = list.sortedWith(compareBy(Person::age, Person::name))
SELECT TABLE_NAME AS table_name,
table_rows AS QuantofRows,
ROUND((data_length + index_length) /1024, 2 ) AS total_size_kb
FROM information_schema.TABLES
WHERE information_schema.TABLES.table_schema = 'db'
ORDER BY (data_length + index_length) DESC;
all 2 above is tested on mysql
Just add this section to server, just before the location / {
location /your/folder/to/browse/ {
autoindex on;
}
INVISIBLE:
The view has to be drawn and it takes time.
GONE:
The view doesn't have to be drawn.
Vlookup
is good if the reference values (column A, sheet 1) are in ascending order. Another option is Index and Match, which can be used no matter the order (As long as the values in column a, sheet 1 are unique)
This is what you would put in column B on sheet 2
=INDEX(Sheet1!A$1:B$6,MATCH(A1,Sheet1!A$1:A$6),2)
Setting Sheet1!A$1:B$6
and Sheet1!A$1:A$6
as named ranges makes it a little more user friendly.
In Swift
Just in case someone was looking for a quick Swift copy and paste.
if let url = NSURL(string: "app://") where UIApplication.sharedApplication().canOpenURL(url) {
UIApplication.sharedApplication().openURL(url)
} else if let itunesUrl = NSURL(string: "https://itunes.apple.com/itunes-link-to-app") where UIApplication.sharedApplication().canOpenURL(itunesUrl) {
UIApplication.sharedApplication().openURL(itunesUrl)
}
Default Export (export default
)
// MyClass.ts -- using default export
export default class MyClass { /* ... */ }
The main difference is that you can only have one default export per file and you import it like so:
import MyClass from "./MyClass";
You can give it any name you like. For example this works fine:
import MyClassAlias from "./MyClass";
Named Export (export
)
// MyClass.ts -- using named exports
export class MyClass { /* ... */ }
export class MyOtherClass { /* ... */ }
When you use a named export, you can have multiple exports per file and you need to import the exports surrounded in braces:
import { MyClass } from "./MyClass";
Note: Adding the braces will fix the error you're describing in your question and the name specified in the braces needs to match the name of the export.
Or say your file exported multiple classes, then you could import both like so:
import { MyClass, MyOtherClass } from "./MyClass";
// use MyClass and MyOtherClass
Or you could give either of them a different name in this file:
import { MyClass, MyOtherClass as MyOtherClassAlias } from "./MyClass";
// use MyClass and MyOtherClassAlias
Or you could import everything that's exported by using * as
:
import * as MyClasses from "./MyClass";
// use MyClasses.MyClass and MyClasses.MyOtherClass here
Which to use?
In ES6, default exports are concise because their use case is more common; however, when I am working on code internal to a project in TypeScript, I prefer to use named exports instead of default exports almost all the time because it works very well with code refactoring. For example, if you default export a class and rename that class, it will only rename the class in that file and not any of the other references in other files. With named exports it will rename the class and all the references to that class in all the other files.
It also plays very nicely with barrel files (files that use namespace exports—export *
—to export other files). An example of this is shown in the "example" section of this answer.
Note that my opinion on using named exports even when there is only one export is contrary to the TypeScript Handbook—see the "Red Flags" section. I believe this recommendation only applies when you are creating an API for other people to use and the code is not internal to your project. When I'm designing an API for people to use, I'll use a default export so people can do import myLibraryDefaultExport from "my-library-name";
. If you disagree with me about doing this, I would love to hear your reasoning.
That said, find what you prefer! You could use one, the other, or both at the same time.
Additional Points
A default export is actually a named export with the name default
, so if the file has a default export then you can also import by doing:
import { default as MyClass } from "./MyClass";
And take note these other ways to import exist:
import MyDefaultExportedClass, { Class1, Class2 } from "./SomeFile";
import MyDefaultExportedClass, * as Classes from "./SomeFile";
import "./SomeFile"; // runs SomeFile.js without importing any exports
First, the problem of the missing prefix.
If you consume something in your layout file that comes from a third party, you may need to consume its prefix as well, something like "droidfu:" which occurs in several places in the XML construct below:
<com.github.droidfu.widgets.WebImageView android:id="@+id/webimage"
android:layout_width="75dip"
android:layout_height="75dip"
android:background="#CCC"
droidfu:autoLoad="true"
droidfu:imageUrl="http://www.android.com/images/opensourceprojec.gif"
droidfu:progressDrawable="..."
/>
This comes out of the JAR, but you'll also need to add the new "xmlns:droidfu"
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:droidfu="http://github.com/droidfu/schema"
...>
or you get the unbound prefix error. For me, this was a failure to copy and paste all of the supplied example from the third-party library's pages.
Minizip does have an example programs to demonstrate its usage - the files are called minizip.c and miniunz.c.
Update: I had a few minutes so I whipped up this quick, bare bones example for you. It's very smelly C, and I wouldn't use it without major improvements. Hopefully it's enough to get you going for now.
// uzip.c - Simple example of using the minizip API.
// Do not use this code as is! It is educational only, and probably
// riddled with errors and leaks!
#include <stdio.h>
#include <string.h>
#include "unzip.h"
#define dir_delimter '/'
#define MAX_FILENAME 512
#define READ_SIZE 8192
int main( int argc, char **argv )
{
if ( argc < 2 )
{
printf( "usage:\n%s {file to unzip}\n", argv[ 0 ] );
return -1;
}
// Open the zip file
unzFile *zipfile = unzOpen( argv[ 1 ] );
if ( zipfile == NULL )
{
printf( "%s: not found\n" );
return -1;
}
// Get info about the zip file
unz_global_info global_info;
if ( unzGetGlobalInfo( zipfile, &global_info ) != UNZ_OK )
{
printf( "could not read file global info\n" );
unzClose( zipfile );
return -1;
}
// Buffer to hold data read from the zip file.
char read_buffer[ READ_SIZE ];
// Loop to extract all files
uLong i;
for ( i = 0; i < global_info.number_entry; ++i )
{
// Get info about current file.
unz_file_info file_info;
char filename[ MAX_FILENAME ];
if ( unzGetCurrentFileInfo(
zipfile,
&file_info,
filename,
MAX_FILENAME,
NULL, 0, NULL, 0 ) != UNZ_OK )
{
printf( "could not read file info\n" );
unzClose( zipfile );
return -1;
}
// Check if this entry is a directory or file.
const size_t filename_length = strlen( filename );
if ( filename[ filename_length-1 ] == dir_delimter )
{
// Entry is a directory, so create it.
printf( "dir:%s\n", filename );
mkdir( filename );
}
else
{
// Entry is a file, so extract it.
printf( "file:%s\n", filename );
if ( unzOpenCurrentFile( zipfile ) != UNZ_OK )
{
printf( "could not open file\n" );
unzClose( zipfile );
return -1;
}
// Open a file to write out the data.
FILE *out = fopen( filename, "wb" );
if ( out == NULL )
{
printf( "could not open destination file\n" );
unzCloseCurrentFile( zipfile );
unzClose( zipfile );
return -1;
}
int error = UNZ_OK;
do
{
error = unzReadCurrentFile( zipfile, read_buffer, READ_SIZE );
if ( error < 0 )
{
printf( "error %d\n", error );
unzCloseCurrentFile( zipfile );
unzClose( zipfile );
return -1;
}
// Write data to file.
if ( error > 0 )
{
fwrite( read_buffer, error, 1, out ); // You should check return of fwrite...
}
} while ( error > 0 );
fclose( out );
}
unzCloseCurrentFile( zipfile );
// Go the the next entry listed in the zip file.
if ( ( i+1 ) < global_info.number_entry )
{
if ( unzGoToNextFile( zipfile ) != UNZ_OK )
{
printf( "cound not read next file\n" );
unzClose( zipfile );
return -1;
}
}
}
unzClose( zipfile );
return 0;
}
I built and tested it with MinGW/MSYS on Windows like this:
contrib/minizip/$ gcc -I../.. -o unzip uzip.c unzip.c ioapi.c ../../libz.a
contrib/minizip/$ ./unzip.exe /j/zlib-125.zip
Go to the project folder and right click on it -> properties ->
check off the read only box and click ok
Right-click on your project and select "Android Tools -> Fix Project Properties"
Right-click on your project and select "Properties -> Java Compiler"
, check "Enable project specific settings"
and select 1.5 or 1.6 from "Compiler compliance settings" select box. (try all the levels one by one just in case)
Under Window -> Preferences -> Java -> Compiler
, set Compiler compliance level to 1.6 or 1.5.
Hopefully it will settle the problem.
When a URL is like this http://stackoverflow.com?param1=value
You can get the param 1 by the following code:
import { Component, OnInit } from '@angular/core';
import { Router, ActivatedRoute, Params } from '@angular/router';
@Component({
selector: '',
templateUrl: './abc.html',
styleUrls: ['./abc.less']
})
export class AbcComponent implements OnInit {
constructor(private route: ActivatedRoute) { }
ngOnInit() {
// get param
let param1 = this.route.snapshot.queryParams["param1"];
}
}
To build an image from command-line in windows/linux. 1. Create a docker file in your current directory. eg: FROM ubuntu RUN apt-get update RUN apt-get -y install apache2 ADD . /var/www/html ENTRYPOINT apachectl -D FOREGROUND ENV name Devops_Docker 2. Don't save it with .txt extension. 3. Under command-line run the command docker build . -t apache2image
You could use the CSS calc
parameter to calculate the height dynamically like so:
.dynamic-height {_x000D_
color: #000;_x000D_
font-size: 12px;_x000D_
margin-top: calc(100% - 10px);_x000D_
text-align: left;_x000D_
}
_x000D_
<div class='dynamic-height'>_x000D_
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem.</p>_x000D_
</div>
_x000D_
You can actually do what Chris Chalmers does in his answer, but you must make sure that HAML doesn't parse the JavaScript. This approach is actually useful when you need to use a different type than text/javascript
, which is was I needed to do for MathJax
.
You can use the plain
filter to keep HAML from parsing the script and throwing an illegal nesting error:
%script{type: "text/x-mathjax-config"}
:plain
MathJax.Hub.Config({
tex2jax: {
inlineMath: [["$","$"],["\\(","\\)"]]
}
});
In order to use my example,Your file "abc.txt" needs to look like:
[your-config]
path1 = "D:\test1\first"
path2 = "D:\test2\second"
path3 = "D:\test2\third"
Then in your software you can use the config parser:
import ConfigParser
and then in you code:
configParser = ConfigParser.RawConfigParser()
configFilePath = r'c:\abc.txt'
configParser.read(configFilePath)
Use case:
self.path = configParser.get('your-config', 'path1')
*Edit (@human.js)
in python 3, ConfigParser is renamed to configparser (as described here)
Using java 8 Stream API could simplify your job.
public static boolean inArray(int[] array, int check) {
return Stream.of(array).anyMatch(i -> i == check);
}
It's just you have the overhead of creating a new Stream
from Array
, but this gives exposure to use other Stream
API. In your case you may not want to create new method for one-line operation, unless you wish to use this as utility.
Hope this helps!
When we use CommandObj.Parameter.Add()
it takes 2 parameters, the first is procedure parameter and the second is its data type, while .AddWithValue()
takes 2 parameters, the first is procedure parameter and the second is the data variable
CommandObj.Parameter.Add("@ID",SqlDbType.Int).Value=textBox1.Text;
for .AddWithValue
CommandObj.Parameter.AddWitheValue("@ID",textBox1.Text);
where ID
is the parameter of stored procedure which data type is Int
I had a similar problem. I tried this:
pip install -U -r requirements.txt
(-U = update if it had already installed)
But the problem continued. I realized that some of generic libraries for development were missed.
sudo apt-get install libtiff5-dev libjpeg8-dev zlib1g-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python-tk
I don't know if this would help you.
After reading all the answers and comments on this question, I thought to do a small experiment.
I generated 50,000 random booleans and called sum
and count
on them.
Here are my results:
>>> a = [bool(random.getrandbits(1)) for x in range(50000)]
>>> len(a)
50000
>>> a.count(False)
24884
>>> a.count(True)
25116
>>> def count_it(a):
... curr = time.time()
... counting = a.count(True)
... print("Count it = " + str(time.time() - curr))
... return counting
...
>>> def sum_it(a):
... curr = time.time()
... counting = sum(a)
... print("Sum it = " + str(time.time() - curr))
... return counting
...
>>> count_it(a)
Count it = 0.00121307373046875
25015
>>> sum_it(a)
Sum it = 0.004102230072021484
25015
Just to be sure, I repeated it several more times:
>>> count_it(a)
Count it = 0.0013530254364013672
25015
>>> count_it(a)
Count it = 0.0014507770538330078
25015
>>> count_it(a)
Count it = 0.0013344287872314453
25015
>>> sum_it(a)
Sum it = 0.003480195999145508
25015
>>> sum_it(a)
Sum it = 0.0035257339477539062
25015
>>> sum_it(a)
Sum it = 0.003350496292114258
25015
>>> sum_it(a)
Sum it = 0.003744363784790039
25015
And as you can see, count
is 3 times faster than sum
. So I would suggest to use count
as I did in count_it
.
Python version: 3.6.7
CPU cores: 4
RAM size: 16 GB
OS: Ubuntu 18.04.1 LTS
In my case, I noticed this behavior when the box was out of memory (RAM) I went to Jenkins -> Manage Jenkins -> Manage Nodes and found an out of memory exception. I just freed up some memory on the machine and the jobs started to go into the executors.
You can try like following:
string output = JsonConvert.SerializeObject(jsonStr);
I do not agree that it's a better user experience to stay within one browser tab. If you want people to stay on your site, or come back to finish reading that article, send them off in a new tab.
Building on @davidmorrow's answer, throw this javascript into your site and turn just external links into links with target=_blank:
<script type="text/javascript" charset="utf-8">
// Creating custom :external selector
$.expr[':'].external = function(obj){
return !obj.href.match(/^mailto\:/)
&& (obj.hostname != location.hostname);
};
$(function(){
// Add 'external' CSS class to all external links
$('a:external').addClass('external');
// turn target into target=_blank for elements w external class
$(".external").attr('target','_blank');
})
</script>
you can select the ids like so:
set @rank = 0;
select id, @rank:=@rank+1 from tbl order by id
the result is a list of ids, and their positions in the sequence.
you can also reset the ids like so:
set @rank = 0;
update tbl a join (select id, @rank:=@rank+1 as rank from tbl order by id) b
on a.id = b.id set a.id = b.rank;
you could also just print out the first unused id like so:
select min(id) as next_id from ((select a.id from (select 1 as id) a
left join tbl b on a.id = b.id where b.id is null) union
(select min(a.id) + 1 as id from tbl a left join tbl b on a.id+1 = b.id
where b.id is null)) c;
after each insert, you can reset the auto_increment:
alter table tbl auto_increment = 16
or explicitly set the id value when doing the insert:
insert into tbl values (16, 'something');
typically this isn't necessary, you have count(*)
and the ability to create a ranking number in your result sets. a typical ranking might be:
set @rank = 0;
select a.name, a.amount, b.rank from cust a,
(select amount, @rank:=@rank+1 as rank from cust order by amount desc) b
where a.amount = b.amount
customers ranked by amount spent.
I tried this code, to retrieve shared preferences from an activity, and could not get it to work:
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
sharedPreferences.getAll();
Log.d("AddNewRecord", "getAll: " + sharedPreferences.getAll());
Log.d("AddNewRecord", "Size: " + sharedPreferences.getAll().size());
Every time I tried, my preferences returned 0, even though I have 14 preferences saved by the preference activity. I finally found the answer. I added this to the preferences in the onCreate section.
getPreferenceManager().setSharedPreferencesName("defaultPreferences");
After I added this statement, my saved preferences returned as expected. I hope that this helps someone else who may experience the same issue that I did.
You can't get value when calling getJSON
, only after response.
var myjson;
$.getJSON("http://127.0.0.1:8080/horizon-update", function(json){
myjson = json;
});
This is actually pretty simple to fix, I originally wrote about the fix ~10 years ago over here https://ao.gl/phpmyadmin-invalid-field-count-in-csv-input-on-line-1/
What you want to do is change "Fields terminated by" from ";" to "," and then make sure that the "Use LOCAL keyword" is selected.
You don't need jQuery for that, you can do it with normal javascript:
http://www.w3schools.com/jsref/jsref_split.asp
var str = "a,b,c,d";
var res = str.split(","); // this returns an array
This works:
var img = document.createElement('img');
img.src = 'img/eqp/' + this.apparel + '/' + this.facing + '_idle.png';
document.getElementById('gamediv').appendChild(img)
Or using jQuery:
$('<img/>')
.attr('src','img/eqp/' + this.apparel + '/' + this.facing + '_idle.png')
.appendTo('#gamediv');
When the toastr message poped up on the screen of firefox. the below tag was displayed in fire bug.
<div class="toast-message">Invalid Credentials, Please check Password</div>.
I took the screenshot at that time. And did the below changes in selenium java code.
String alertText = "";
WebDriverWait wait = new WebDriverWait(driver, 5);
wait.until(ExpectedConditions.visibilityOfElementLocated(By.className("toast-message")));
WebElement toast1 = driver.findElement(By.className("toast-message"));
alertText = toast1.getText();
System.out.println( alertText);
And my issue of toastr popup got resolved.
I had the same problem I altered the E:\NodeJS\ReactNativeApp\ExpoTest\node_modules\metro-config\src\defaults\blacklist.js in my project
from
var sharedBlacklist = [
/node_modules[/\\]react[/\\]dist[/\\].*/,
/website\/node_modules\/.*/,
/heapCapture\/bundle\.js/,
/.*\/__tests__\/.*/
];
to
var sharedBlacklist = [
/node_modules[\/\\]react[\/\\]dist[\/\\].*/,
/website\/node_modules\/.*/,
/heapCapture\/bundle\.js/,
/.*\/__tests__\/.*/
];
this worked perfectly for me
After seeing David's implementation, it seems like there is no need to have a singleton class function instanceMethod
since let
is doing pretty much the same thing as a sharedInstance
class method. All you need to do is declare it as a global constant and that would be it.
let gScopeManagerSharedInstance = ScopeManager()
class ScopeManager {
// No need for a class method to return the shared instance. Use the gScopeManagerSharedInstance directly.
}
You can only stringify the array and append it. Sends the array as an actual Array even if it has only one item.
const array = [ 1, 2 ];
let formData = new FormData();
formData.append("numbers", JSON.stringify(array));
Well, it is possible to enable Greasemonkey scripts for Google Chrome so maybe there is a way to sort of install Firebug using this method? Firebug Lite would also work, but it's just not the same feeling as using the full featured one :(
willshouse.com/2009/05/29/install-greasemonkey-for-chrome-a-better-guide/
Everyone here is focusing on downgrading @angular-devkit/build-angular to @angular 7.x versions for compatibility, but what they should be doing is to upgrade @angular/cli
to angular 8 versions.
The problem is that the system cli is still stuck at an old version and isn't automatically updated by ng update
(because it is outside the angular controlled project), so it is being left at an incompatible version when trying to access the angular libraries.
Downgrading @angular-devkit/build-angular
just causes more incompatibilities.
npm i --global @angular/cli@latest
will fix the problem without breaking things elsewhere.
You dont need to define option tags, you can do this using the ngOptions directive: https://docs.angularjs.org/api/ng/directive/ngOptions
<select class="form-control" ng-change="unitChanged()" ng-model="data.unit" ng-options="unit.id as unit.label for unit in units"></select>
I know this is a pretty old topic, but I also had a same problem.
My solution:
how we fill the combobox:
foreach (KeyValuePair<int, string> item in listRegion)
{
combo.Items.Add(item.Value);
combo.ValueMember = item.Value.ToString();
combo.DisplayMember = item.Key.ToString();
combo.SelectedIndex = 0;
}
and that's how we get inside:
MessageBox.Show(combo_region.DisplayMember.ToString());
I hope it help someone
The three most used and well supported jQuery grid plugins today are SlickGrid, jqGrid and DataTables. See http://wiki.jqueryui.com/Grid-OtherGrids for more info.
Maven is packaged for Fedora since mid 2014, so it is now pretty easy. Just type
sudo dnf install maven
Now test the installation, just run maven in a random directory
mvn
And it will fail, because you did not specify a goal, e.g. mvn package
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.102 s
[INFO] Finished at: 2017-11-14T13:45:00+01:00
[INFO] Final Memory: 8M/176M
[INFO] ------------------------------------------------------------------------
[ERROR] No goals have been specified for this build
[...]
As for the meaning of each character described in C Primer Plus, what you expected is an 'correct' answer. It should be true for some computer architectures and compilers, but unfortunately not yours.
I wrote a simple c program to repeat your test, and got that 'correct' answer. I was using Mac OS and gcc.
Also, I am very curious what is the compiler that you were using. :)
Yet another perl WTDI:
perl -i -p0777we's/\n\z//' filename
The defacto standard for learning Grails is the excellent Getting Started with Grails by Jason Rudolph. You can debate whether it is an online tutorial or a book since it can be purchased but is available as a free download. There are more "real" books being published and I recommend Beginning Groovy and Grails.
The important thing to note here is that the mime type is not the same as the file extension. Sometimes, however, they have the same value.
https://www.iana.org/assignments/media-types/media-types.xhtml includes a list of registered Mime types, though there is nothing stopping you from making up your own, as long as you are at both the sending and the receiving end. Here is where Microsoft comes in to the picture.
Where there is a lot of confusion is the fact that operating systems have their own way of identifying file types by using the tail end of the file name, referred to as the extension. In modern operating systems, the whole name is one long string, but in more primitive operating systems, it is treated as a separate attribute.
The OS which caused the confusion is MSDOS, which had limited the extension to 3 characters. This limitation is inherited to this day in devices, such as SD cards, which still store data in the same way.
One side effect of this limitation is that some file extensions, such as .gif
match their Mime Type, image/gif
, while others are compromised. This includes image/jpeg
whose extension is shortened to .jpg
. Even in modern Windows, where the limitation is lifted, Microsoft never let the past go, and so the file extension is still the shortened version.
Given that that:
The short answer is:
image/jpg
, so the answer is
that it is not the same as image/jpeg
While we’re at it …
Legacy versions of Internet Explorer took the liberty of uploading jpeg
files with the Mime Type of image/pjpeg
, which, of course, just means more work for everybody else. They also uploaded png
files as image/x-png
.
Simple way:
repository.findAll(Sort.by(Sort.Direction.DESC, "colName"));
import os
print os.getcwd() # Prints the current working directory
To set the working directory:
os.chdir('c:\\Users\\uname\\desktop\\python') # Provide the new path here
I think that mobile devices dont work with fixed positions. You should try with some js plugin like skrollr.js (for example). With this kind of plugin you can select the position of your div (or whatever) in function of scrollbar position.
We have been using Git for sometime, recently our Git server's harddrive crashed and we could not revert back to the latest state. We managed to get back to few days old state. When the server was back up. Everyone in the team pulled/pushed their changes and voila, the server is back to current state.
In directive (myDirective
):
...
directive.scope = {
boundFunction: '&',
model: '=',
};
...
return directive;
In directive template:
<div
data-ng-repeat="item in model"
data-ng-click='boundFunction({param: item})'>
{{item.myValue}}
</div>
In source:
<my-directive
model='myData'
bound-function='myFunction(param)'>
</my-directive>
...where myFunction
is defined in the controller.
Note that param
in the directive template binds neatly to param
in the source, and is set to item
.
To call from within the link
property of a directive ("inside" of it), use a very similar approach:
...
directive.link = function(isolatedScope) {
isolatedScope.boundFunction({param: "foo"});
};
...
return directive;
If you have installed Git for Windows, you should have Git Bash installed, since that comes with Git.
Use the split
command in Git Bash to split a file:
into files of size 500MB each: split myLargeFile.txt -b 500m
into files with 10000 lines each: split myLargeFile.txt -l 10000
Tips:
If you don't have Git/Git Bash, download at https://git-scm.com/download
If you lost the shortcut to Git Bash, you can run it using C:\Program Files\Git\git-bash.exe
I always like examples though...
Example:
You can see in this image that the files generated by split
are named xaa
, xab
, xac
, etc.
These names are made up of a prefix and a suffix, which you can specify. Since I didn't specify what I want the prefix or suffix to look like, the prefix defaulted to x
, and the suffix defaulted to a two-character alphabetical enumeration.
Another Example:
This example demonstrates
MySlice
(instead of the default x
),-d
flag for using numerical suffixes (instead of aa
, ab
, ac
, etc...),-a 5
to tell it I want the suffixes to be 5 digits long:Rotating the labels is certainly possible. Note though that doing so reduces the readability of the text. One alternative is to alternate label positions using a code like this:
import numpy as np
n=5
x = np.arange(n)
y = np.sin(np.linspace(-3,3,n))
xlabels = ['Long ticklabel %i' % i for i in range(n)]
fig, ax = plt.subplots()
ax.plot(x,y, 'o-')
ax.set_xticks(x)
labels = ax.set_xticklabels(xlabels)
for i, label in enumerate(labels):
label.set_y(label.get_position()[1] - (i % 2) * 0.075)
For more background and alternatives, see this post on my blog
Using has a gotcha, while it is by far the fastest method, it also expects all of your filenames to be lowercase.
spl_autoload_extensions(".php");
spl_autoload_register();
For example:
A file containing the class SomeSuperClass would need to be named somesuperclass.php, this is a gotcha when using a case sensitive filesystem like Linux, if your file is named SomeSuperClass.php but not a problem under Windows.
Using __autoload in your code may still work with current versions of PHP but expect this feature to become deprecated and finally removed in the future.
So what options are left:
This version will work with PHP 5.3 and above and allows for filenames SomeSuperClass.php and somesuperclass.php. If your using 5.3.2 and above, this autoloader will work even faster.
<?php
if ( function_exists ( 'stream_resolve_include_path' ) == false ) {
function stream_resolve_include_path ( $filename ) {
$paths = explode ( PATH_SEPARATOR, get_include_path () );
foreach ( $paths as $path ) {
$path = realpath ( $path . PATH_SEPARATOR . $filename );
if ( $path ) {
return $path;
}
}
return false;
}
}
spl_autoload_register ( function ( $className, $fileExtensions = null ) {
$className = str_replace ( '_', '/', $className );
$className = str_replace ( '\\', '/', $className );
$file = stream_resolve_include_path ( $className . '.php' );
if ( $file === false ) {
$file = stream_resolve_include_path ( strtolower ( $className . '.php' ) );
}
if ( $file !== false ) {
include $file;
return true;
}
return false;
});
Get Autoruns from Mark Russinovich, the Sysinternals guy that discovered the Sony Rootkit... Best software I've ever used for cleaning up things that get started automatically.
A solution without reference to a Bean:
<h:button value="login"
outcome="content/configuration.xhtml?i=1" />
In my project I needed this approach:
<h:commandButton value="login"
action="content/configuration.xhtml?faces-redirect=true&i=1" />
You can also use a bean (request scoped is suggested) and directly access the context by way of the FacesContext.
You can get the HttpServletRequest and HttpServletResposne objects by using the following code:
HttpServletRequest req = (HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();
HttpServletResponse res = (HttpServletResponse)FacesContext.getCurrentInstance().getExternalContext().getResponse();
After this, you can access individual parameters via getParameter(paramName)
or access the full map via getParameterMap()
req
object
The reason I suggest a request scoped bean is that you can use these during initialization (worst case scenario being the constructor. Most frameworks give you some place to do code at bean initialization time) and they will be done as your request comes in.
It is, however, a bit of a hack. ;) You may want to look into seeing if there is a JSF Acegi module that will allow you to get access to the variables you need.
Use the traceback module:
import sys
import traceback
try:
assert True
assert 7 == 7
assert 1 == 2
# many more statements like this
except AssertionError:
_, _, tb = sys.exc_info()
traceback.print_tb(tb) # Fixed format
tb_info = traceback.extract_tb(tb)
filename, line, func, text = tb_info[-1]
print('An error occurred on line {} in statement {}'.format(line, text))
exit(1)
TL;DR Log all your queries and tail the mysql log.
These directions are for my install of Ubuntu 14.04. Issue command lsb_release -a
to get your version. Your install might be different.
cd /etc/mysql
. You should see a file called my.cnf
. That’s the file we’re gonna change.cat my.cnf | grep general_log
. This filters the my.cnf
file for you. You should see two entries: #general_log_file = /var/log/mysql/mysql.log
&& #general_log = 1
.sudo service mysql restart
. sudo service nginx restart
.Nice work! You’re all set. Now all you have to do is tail the log file so you can see the PDO queries your app makes in real time.
Enter this cmd tail -f /var/log/mysql/mysql.log
.
Your output will look something like this:
73 Connect xyz@localhost on your_db
73 Query SET NAMES utf8mb4
74 Connect xyz@localhost on your_db
75 Connect xyz@localhost on your_db
74 Quit
75 Prepare SELECT email FROM customer WHERE email=? LIMIT ?
75 Execute SELECT email FROM customer WHERE email='[email protected]' LIMIT 5
75 Close stmt
75 Quit
73 Quit
Any new queries your app makes will automatically pop into view, as long as you continue tailing the log. To exit the tail, hit cmd/ctrl c
.
truncate --size 0 mysql.log
.Huge shout out to Nathan Long’s answer above for the inspo to figure this out on Ubuntu. Also to dikirill for his comment on Nathan’s post which lead me to this solution.
Love you stackoverflow!
This code will add an event listener to the default local Inbox, then take some action on incoming emails. You need to add that action in the code below.
Private WithEvents Items As Outlook.Items
Private Sub Application_Startup()
Dim olApp As Outlook.Application
Dim objNS As Outlook.NameSpace
Set olApp = Outlook.Application
Set objNS = olApp.GetNamespace("MAPI")
' default local Inbox
Set Items = objNS.GetDefaultFolder(olFolderInbox).Items
End Sub
Private Sub Items_ItemAdd(ByVal item As Object)
On Error Goto ErrorHandler
Dim Msg As Outlook.MailItem
If TypeName(item) = "MailItem" Then
Set Msg = item
' ******************
' do something here
' ******************
End If
ProgramExit:
Exit Sub
ErrorHandler:
MsgBox Err.Number & " - " & Err.Description
Resume ProgramExit
End Sub
After pasting the code in ThisOutlookSession
module, you must restart Outlook.
Just use a placeholder
tag in your input instead of value
In Python, overloading is not an applied concept. However, if you are trying to create a case where, for instance, you want one initializer to be performed if passed an argument of type foo
and another initializer for an argument of type bar
then, since everything in Python is handled as object, you can check the name of the passed object's class type and write conditional handling based on that.
class A:
def __init__(self, arg)
# Get the Argument's class type as a String
argClass = arg.__class__.__name__
if argClass == 'foo':
print 'Arg is of type "foo"'
...
elif argClass == 'bar':
print 'Arg is of type "bar"'
...
else
print 'Arg is of a different type'
...
This concept can be applied to multiple different scenarios through different methods as needed.
Check out Swing Dialogs (mainly focused on JOptionPane, as mentioned by @mcfinnigan).
You may be looking for the n key.
Try running visual studio as an administrator within windows.
OS Debian 10 + nginx. In my case, i unlinked the "default" page as:
Jonny 5 beat me to it. I was going to suggest using the \W+
without the \s
as in text.replace(/\W+/g, " ")
. This covers white space as well.
Add nth Days, months and years
$n = 2;
for ($i = 0; $i <= $n; $i++){
$d = strtotime("$i days");
$x = strtotime("$i month");
$y = strtotime("$i year");
echo "Dates : ".$dates = date('d M Y', "+$d days");
echo "<br>";
echo "Months : ".$months = date('M Y', "+$x months");
echo '<br>';
echo "Years : ".$years = date('Y', "+$y years");
echo '<br>';
}
Use the System.Threading.Timer class.
System.Windows.Forms.Timer is designed primarily for use in a single thread usually the Windows Forms UI thread.
There is also a System.Timers class added early on in the development of the .NET framework. However it is generally recommended to use the System.Threading.Timer class instead as this is just a wrapper around System.Threading.Timer anyway.
It is also recommended to always use a static (shared in VB.NET) System.Threading.Timer if you are developing a Windows Service and require a timer to run periodically. This will avoid possibly premature garbage collection of your timer object.
Here's an example of a timer in a console application:
using System;
using System.Threading;
public static class Program
{
public static void Main()
{
Console.WriteLine("Main thread: starting a timer");
Timer t = new Timer(ComputeBoundOp, 5, 0, 2000);
Console.WriteLine("Main thread: Doing other work here...");
Thread.Sleep(10000); // Simulating other work (10 seconds)
t.Dispose(); // Cancel the timer now
}
// This method's signature must match the TimerCallback delegate
private static void ComputeBoundOp(Object state)
{
// This method is executed by a thread pool thread
Console.WriteLine("In ComputeBoundOp: state={0}", state);
Thread.Sleep(1000); // Simulates other work (1 second)
// When this method returns, the thread goes back
// to the pool and waits for another task
}
}
From the book CLR Via C# by Jeff Richter. By the way this book describes the rationale behind the 3 types of timers in Chapter 23, highly recommended.
I figured there's no way except going into the file system to find out if text.txt is a directory or just a file. If you wanted something simple, maybe you can just use:
s.Substring(s.LastIndexOf(@"\"));
you can do that
var filteredFileList = fileList.Where(fl => filterList.Contains(fl.ToString()));
To create a copy of the crop we want, we can do the following,
// Read img
cv::Mat img = cv::imread("imgFileName");
cv::Mat croppedImg;
// This line picks out the rectangle from the image
// and copies to a new Mat
img(cv::Rect(xMin,yMin,xMax-xMin,yMax-yMin)).copyTo(croppedImg);
// Display diff
cv::imshow( "Original Image", img );
cv::imshow( "Cropped Image", croppedImg);
cv::waitKey();
This issue can happen because you are using features that are not supported by the version of .net selected for the project.
In my case the reason was I used ?? operator to check for null and throw exception.
Strange enough that VS doesn't inform about the actual reason of the problem in the list of build errors.
But you can find this information in the Output logs of the build.
Solution 1 is not great. It does work, but adding hacky random or timestamped query strings to the end of your image files will make the browser re-download and cache every version of every image, every time a page is loaded, regardless of weather the image has changed or not on the server.
Solution 2 is useless. Adding nocache
headers to an image file is not only very difficult to implement, but it's completely impractical because it requires you to predict when it will be needed in advance, the first time you load any image which you think might change at some point in the future.
The absolute best way I've found to solve this is to use ETAGS inside a .htaccess file in your images directory. The following tells Apache to send a unique hash to the browser in the image file headers. This hash only ever changes when time the image file is modified and this change triggers the browser to reload the image the next time it is requested.
<FilesMatch "\.(jpg|jpeg)$">
FileETag MTime Size
</FilesMatch>
There is a free open source tool called Anchore that you can use to scan container images. This command will allow you to list all files in a container image
anchore-cli image content myrepo/app:latest files
This is how simple it is: If you want to be strict with all your code, add "use strict";
at the start of your JavaScript.
But if you only want to be strict with some of your code, use the function form. Anyhow, I would recomend you to use it at the beginning of your JavaScript because this will help you be a better coder.
The data-* attributes is used to store custom data private to the page or application
So Bootstrap uses these attributes for saving states of objects
If you're struggling with detecting orientation change events of a dialog INDEPENDENT OF AN ACTIVITY REFERENCE, this method works excitingly well. I use this because I have my own dialog class that can be shown in multiple different Activities so I don't always know which Activity it's being shown in. With this method you don't need to change the AndroidManifest, worry about Activity references, and you don't need a custom dialog (as I have). You do need, however, a custom content view so you can detect the orientation changes using that particular view. Here's my example:
public class MyContentView extends View{
public MyContentView(Context context){
super(context);
}
@Override
public void onConfigurationChanged(Configuration newConfig){
super.onConfigurationChanged(newConfig);
//DO SOMETHING HERE!! :D
}
}
Dialog dialog = new Dialog(context);
//set up dialog
dialog.setContentView(new MyContentView(context));
dialog.show();
AlertDialog.Builder builder = new AlertDialog.Builder(context);
//set up dialog builder
builder.setView(new MyContentView(context)); //Can use this method
builder.setCustomTitle(new MycontentView(context)); // or this method
builder.build().show();
ProgressDialog progress = new ProgressDialog(context);
//set up progress dialog
progress.setView(new MyContentView(context)); //Can use this method
progress.setCustomTitle(new MyContentView(context)); // or this method
progress.show();
Try this one:
$.fn.extend({
"calendar":function(){
console.log(this);
var methods = {
"add":function(){console.log("add"); return this;},
"init":function(){console.log("init"); return this;},
"sample":function(){console.log("sample"); return this;}
};
methods.init(); // you can call any method inside
return methods;
}});
$.fn.calendar() // caller or
$.fn.calendar().sample().add().sample() ......; // call methods
Depends what you mean by "post data". You can use the HTML target=""
attribute on a <form />
tag, so it could be as simple as:
<form action="do_stuff.aspx" method="post" target="my_iframe">
<input type="submit" value="Do Stuff!">
</form>
<!-- when the form is submitted, the server response will appear in this iframe -->
<iframe name="my_iframe" src="not_submitted_yet.aspx"></iframe>
If that's not it, or you're after something more complex, please edit your question to include more detail.
There is a known bug with Internet Explorer that only occurs when you're dynamically creating your iframes, etc. using Javascript (there's a work-around here), but if you're using ordinary HTML markup, you're fine. The target attribute and frame names isn't some clever ninja hack; although it was deprecated (and therefore won't validate) in HTML 4 Strict or XHTML 1 Strict, it's been part of HTML since 3.2, it's formally part of HTML5, and it works in just about every browser since Netscape 3.
I have verified this behaviour as working with XHTML 1 Strict, XHTML 1 Transitional, HTML 4 Strict and in "quirks mode" with no DOCTYPE specified, and it works in all cases using Internet Explorer 7.0.5730.13. My test case consist of two files, using classic ASP on IIS 6; they're reproduced here in full so you can verify this behaviour for yourself.
default.asp
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Form Iframe Demo</title>
</head>
<body>
<form action="do_stuff.asp" method="post" target="my_frame">
<input type="text" name="someText" value="Some Text">
<input type="submit">
</form>
<iframe name="my_frame" src="do_stuff.asp">
</iframe>
</body>
</html>
do_stuff.asp
<%@Language="JScript"%><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Form Iframe Demo</title>
</head>
<body>
<% if (Request.Form.Count) { %>
You typed: <%=Request.Form("someText").Item%>
<% } else { %>
(not submitted)
<% } %>
</body>
</html>
I would be very interested to hear of any browser that doesn't run these examples correctly.
You just need to convert your set
to a list
import pandas as pd
df = pd.DataFrame(np.random.randn(100, 4), columns=list('ABCD'))
my_cols = set(df.columns)
my_cols.remove('B')
my_cols.remove('D')
my_cols = list(my_cols)
df2 = df[my_cols]
I wouldn't call the class the same (aside from casing) as the constant ... I would have at a minimum one class of "Settings", or "Values", or "Constants", where all the constants would live. If I have a large number of them, I'd group them up in logical constant classes (UserSettings, AppSettings, etc.)
1.From the Start menu, select the Visual Studio directory, then select Developer Command Prompt for VS .
2.The Developer Command Prompt for Visual Studio appears.
3.Access the directory where your project's compiled executable file is located.
4.Run InstallUtil.exe from the command prompt with your project's executable as a parameter
Sometimes Web.config of the application ends up in an unconsistent state (duplicate declaration of http handlers, etc) To check which line in config is causing the error open IIS Manager and try to edit the handler mappings..it will display you the error line if there is such an error in web config.
Strangely such errors do not get logged in Event viewer or ULS
The solution that i believe is best and optimized is:
try: #your code except "ModelName".DoesNotExist: #your code
Well your jsonString is wrong.
String jsonString = "{\"stat\":{\"sdr\": \"aa:bb:cc:dd:ee:ff\",\"rcv\": \"aa:bb:cc:dd:ee:ff\",\"time\": \"UTC in millis\",\"type\": 1,\"subt\": 1,\"argv\": [{\"1\":2},{\"2\":3}]}}";
use this jsonString
and if you use the same JSONParser
and ContainerFactory
in the example you will see that it will be encoded/decoded.
Additionally if you want to print your string after stat
here it goes:
try{
Map json = (Map)parser.parse(jsonString, containerFactory);
Iterator iter = json.entrySet().iterator();
System.out.println("==iterate result==");
Object entry = json.get("stat");
System.out.println(entry);
}
And about the json libraries, there are a lot of them. Better you check this.
Following @acdcjunior answer, this is how I implemented it
service:
get(url, params): Promise<Object> {
return this.sendRequest(this.baseUrl + url, 'get', null, params)
.map((res) => {
return res as Object
}).catch((e) => {
return Observable.of(e);
})
.toPromise();
}
caller:
this.dataService.get(baseUrl, params)
.then((object) => {
if(object['name'] === 'HttpErrorResponse') {
this.error = true;
//or any handle
} else {
this.myObj = object as MyClass
}
});
Don't hardcode ip of containers in nginx config, docker link adds the hostname of the linked machine to the hosts file of the container and you should be able to ping by hostname.
EDIT: Docker 1.9 Networking no longer requires you to link containers, when multiple containers are connected to the same network, their hosts file will be updated so they can reach each other by hostname.
Every time a docker container spins up from an image (even stop/start-ing an existing container) the containers get new ip's assigned by the docker host. These ip's are not in the same subnet as your actual machines.
see docker linking docs (this is what compose uses in the background)
but more clearly explained in the docker-compose
docs on links & expose
links
links: - db - db:database - redis
An entry with the alias' name will be created in /etc/hosts inside containers for this service, e.g:
172.17.2.186 db 172.17.2.186 database 172.17.2.187 redis
expose
Expose ports without publishing them to the host machine - they'll only be accessible to linked services. Only the internal port can be specified.
and if you set up your project to get the ports + other credentials through environment variables, links automatically set a bunch of system variables:
To see what environment variables are available to a service, run
docker-compose run SERVICE env
.
name_PORT
Full URL, e.g. DB_PORT=tcp://172.17.0.5:5432
name_PORT_num_protocol
Full URL, e.g.
DB_PORT_5432_TCP=tcp://172.17.0.5:5432
name_PORT_num_protocol_ADDR
Container's IP address, e.g.
DB_PORT_5432_TCP_ADDR=172.17.0.5
name_PORT_num_protocol_PORT
Exposed port number, e.g.
DB_PORT_5432_TCP_PORT=5432
name_PORT_num_protocol_PROTO
Protocol (tcp or udp), e.g.
DB_PORT_5432_TCP_PROTO=tcp
name_NAME
Fully qualified container name, e.g.
DB_1_NAME=/myapp_web_1/myapp_db_1
This page provides great understanding about the constructor
and destructor
attribute implementation and the sections within within ELF that allow them to work. After digesting the information provided here, I compiled a bit of additional information and (borrowing the section example from Michael Ambrus above) created an example to illustrate the concepts and help my learning. Those results are provided below along with the example source.
As explained in this thread, the constructor
and destructor
attributes create entries in the .ctors
and .dtors
section of the object file. You can place references to functions in either section in one of three ways. (1) using either the section
attribute; (2) constructor
and destructor
attributes or (3) with an inline-assembly call (as referenced the link in Ambrus' answer).
The use of constructor
and destructor
attributes allow you to additionally assign a priority to the constructor/destructor to control its order of execution before main()
is called or after it returns. The lower the priority value given, the higher the execution priority (lower priorities execute before higher priorities before main() -- and subsequent to higher priorities after main() ). The priority values you give must be greater than100
as the compiler reserves priority values between 0-100 for implementation. Aconstructor
or destructor
specified with priority executes before a constructor
or destructor
specified without priority.
With the 'section' attribute or with inline-assembly, you can also place function references in the .init
and .fini
ELF code section that will execute before any constructor and after any destructor, respectively. Any functions called by the function reference placed in the .init
section, will execute before the function reference itself (as usual).
I have tried to illustrate each of those in the example below:
#include <stdio.h>
#include <stdlib.h>
/* test function utilizing attribute 'section' ".ctors"/".dtors"
to create constuctors/destructors without assigned priority.
(provided by Michael Ambrus in earlier answer)
*/
#define SECTION( S ) __attribute__ ((section ( S )))
void test (void) {
printf("\n\ttest() utilizing -- (.section .ctors/.dtors) w/o priority\n");
}
void (*funcptr1)(void) SECTION(".ctors") =test;
void (*funcptr2)(void) SECTION(".ctors") =test;
void (*funcptr3)(void) SECTION(".dtors") =test;
/* functions constructX, destructX use attributes 'constructor' and
'destructor' to create prioritized entries in the .ctors, .dtors
ELF sections, respectively.
NOTE: priorities 0-100 are reserved
*/
void construct1 () __attribute__ ((constructor (101)));
void construct2 () __attribute__ ((constructor (102)));
void destruct1 () __attribute__ ((destructor (101)));
void destruct2 () __attribute__ ((destructor (102)));
/* init_some_function() - called by elf_init()
*/
int init_some_function () {
printf ("\n init_some_function() called by elf_init()\n");
return 1;
}
/* elf_init uses inline-assembly to place itself in the ELF .init section.
*/
int elf_init (void)
{
__asm__ (".section .init \n call elf_init \n .section .text\n");
if(!init_some_function ())
{
exit (1);
}
printf ("\n elf_init() -- (.section .init)\n");
return 1;
}
/*
function definitions for constructX and destructX
*/
void construct1 () {
printf ("\n construct1() constructor -- (.section .ctors) priority 101\n");
}
void construct2 () {
printf ("\n construct2() constructor -- (.section .ctors) priority 102\n");
}
void destruct1 () {
printf ("\n destruct1() destructor -- (.section .dtors) priority 101\n\n");
}
void destruct2 () {
printf ("\n destruct2() destructor -- (.section .dtors) priority 102\n");
}
/* main makes no function call to any of the functions declared above
*/
int
main (int argc, char *argv[]) {
printf ("\n\t [ main body of program ]\n");
return 0;
}
output:
init_some_function() called by elf_init()
elf_init() -- (.section .init)
construct1() constructor -- (.section .ctors) priority 101
construct2() constructor -- (.section .ctors) priority 102
test() utilizing -- (.section .ctors/.dtors) w/o priority
test() utilizing -- (.section .ctors/.dtors) w/o priority
[ main body of program ]
test() utilizing -- (.section .ctors/.dtors) w/o priority
destruct2() destructor -- (.section .dtors) priority 102
destruct1() destructor -- (.section .dtors) priority 101
The example helped cement the constructor/destructor behavior, hopefully it will be useful to others as well.
You should implement a Custom List View, such that you define a Layout once and draw it for every row in the list view.
I was looking for simple solution to remove views from viewpager (no fragments) dynamically. So, if you have some info, that your pages belongs to, you can set it to View as tag. Just like that (adapter code):
@Override
public Object instantiateItem(ViewGroup collection, int position)
{
ImageView iv = new ImageView(mContext);
MediaMessage msg = mMessages.get(position);
...
iv.setTag(media);
return iv;
}
@Override
public int getItemPosition (Object object)
{
View o = (View) object;
int index = mMessages.indexOf(o.getTag());
if (index == -1)
return POSITION_NONE;
else
return index;
}
You just need remove your info from mMessages, and then call notifyDataSetChanged()
for your adapter. Bad news there is no animation in this case.
only shortcut for something like this that I know of is
var val;
(val==null || val===false) ? false: true;
What about running the google-drive-ftp-adapter application in your local pc and then connect your filezilla client to that application? The google-drive-ftp-adapter application is not an online service, but its an alternative solution to connect to google drive through ftp.
The google-drive-ftp-adapter is an open source application hosted in github and it is a kind of standalone ftp-server java application that connects to your google drive in behalf of you, acting as a bridge (or adapter) between your ftp client and the google drive service. Once you have running the google-drive-ftp adapter, you can connect your preferred FTP client to the google-drive-ftp-adapter ftp server in your localhost (or wherever the app is running, like in a remote machine) to manage your files.
I use it in conjunction with beyond compare to synchronize my local files against the ones I have in the google drive and it serves well for the purpose.
This is the current github link hosting the google-drive-ftp-adapter repository: https://github.com/andresoviedo/google-drive-ftp-adapter
The java.net blog had a class the other day that might have done what you want (but it is down right now so I cannot check).
This code here could probably be modified to do what you want:
Here is the one I was thinking of from java.net: https://urlencodedquerystring.dev.java.net/
Just try to add exit;
at the end of your PHP script.
Open an administrator command prompt, and do this command:
fsutil fsinfo ntfsinfo [your drive]
The Bytes Per Cluster is the equivalent of the allocation unit.
purls $.params()
used without a parameter will give you a key-value object of the parameters.
jQuerys $.param()
will build a querystring from the supplied object/array.
var params = parsedUrl.param();
delete params["page"];
var newUrl = "?page=" + $(this).val() + "&" + $.param(params);
Update
I've no idea why I used delete
here...
var params = parsedUrl.param();
params["page"] = $(this).val();
var newUrl = "?" + $.param(params);
Coming out of one of the first BoostCon (now called CppCon), I and two others worked on a library to do just this. The main sticking point was needing to extend namespace std
. That turned out to be a no-go for a boost library.
Unfortunately the links to the code no longer work, but you might find some interesting tidbits in the discussions (at least those that aren't talking about what to name it!)
http://boost.2283326.n4.nabble.com/explore-Library-Proposal-Container-Streaming-td2619544.html
You need to access a geocoding service (i.e. from Google), there is no simple formula to transfer addresses to geo coordinates.
You have to close that application first. There is no way to delete it, if it's used by some application.
UnLock IT is a neat utility that helps you to take control of any file or folder when it is locked by some application or system. For every locked resource, you get a list of locking processes and can unlock it by terminating those processes. EMCO Unlock IT offers Windows Explorer integration that allows unlocking files and folders by one click in the context menu.
There's also Unlocker (not recommended, see Warning below), which is a free tool which helps locate any file locking handles running, and give you the option to turn it off. Then you can go ahead and do anything you want with those files.
Warning: The installer includes a lot of undesirable stuff. You're almost certainly better off with UnLock IT.
We can pretend they are filenames and remove extensions:
tools::file_path_sans_ext(a)
# [1] "NM_020506" "NM_020519" "NM_001030297" "NM_010281" "NM_011419" "NM_053155"
I couldn't add a comment to Abhijit Rao's answer above, so I am submitting this as an additional answer.
I needed to have the table column scroll into view on a wide table, so I added the scroll left features into the function. As someone mentioned, it jumps when it scrolls, but it worked for my purposes.
function scrollIntoView(element, container) {
var containerTop = $(container).scrollTop();
var containerLeft = $(container).scrollLeft();
var containerBottom = containerTop + $(container).height();
var containerRight = containerLeft + $(container).width();
var elemTop = element.offsetTop;
var elemLeft = element.offsetLeft;
var elemBottom = elemTop + $(element).height();
var elemRight = elemLeft + $(element).width();
if (elemTop < containerTop) {
$(container).scrollTop(elemTop);
} else if (elemBottom > containerBottom) {
$(container).scrollTop(elemBottom - $(container).height());
}
if(elemLeft < containerLeft) {
$(container).scrollLeft(elemLeft);
} else if(elemRight > containerRight) {
$(container).scrollLeft(elemRight - $(container).width());
}
}
You can also write like below (without pyspark.sql.functions
):
df.filter('d<5 and (col1 <> col3 or (col1 = col3 and col2 <> col4))').show()
Result:
+----+----+----+----+---+
|col1|col2|col3|col4| d|
+----+----+----+----+---+
| A| xx| D| vv| 4|
| A| x| A| xx| 3|
| E| xxx| B| vv| 3|
| F|xxxx| F| vvv| 4|
| G| xxx| G| xx| 4|
+----+----+----+----+---+
If you are using Visual Studio 2010 or plus then check the target framework that is it .Net Framework 4.0 or .Net Framework 4.0 Client Profile. then change is to .Net Framework 4.0.
You need to add reference this .dll file (System.Drawing.dll) to perform drawing operations.
If it is OK then follow these steps to add reference to System.Drawing.dll
Solution Explorer
, right-click on the project node
and click Add Reference.
System.Drawing.dll
to reference, then click OK.You can add days to a date like this:
// add days to current **DateTime**
var addedDateTime = DateTime.Now.AddDays(10);
// add days to current **Date**
var addedDate = DateTime.Now.Date.AddDays(10);
// add days to any DateTime variable
var addedDateTime = anyDate.AddDay(10);
Use the TRY_CONVERT function.
Create a user defined function. This will avoid the issues that Fedor Hajdu mentioned with regards to currency, fractional numbers, etc:
CREATE FUNCTION dbo.TryConvertInt(@Value varchar(18))
RETURNS int
AS
BEGIN
SET @Value = REPLACE(@Value, ',', '')
IF ISNUMERIC(@Value + 'e0') = 0 RETURN NULL
IF ( CHARINDEX('.', @Value) > 0 AND CONVERT(bigint, PARSENAME(@Value, 1)) <> 0 ) RETURN NULL
DECLARE @I bigint =
CASE
WHEN CHARINDEX('.', @Value) > 0 THEN CONVERT(bigint, PARSENAME(@Value, 2))
ELSE CONVERT(bigint, @Value)
END
IF ABS(@I) > 2147483647 RETURN NULL
RETURN @I
END
GO
-- Testing
DECLARE @Test TABLE(Value nvarchar(50)) -- Result
INSERT INTO @Test SELECT '1234' -- 1234
INSERT INTO @Test SELECT '1,234' -- 1234
INSERT INTO @Test SELECT '1234.0' -- 1234
INSERT INTO @Test SELECT '-1234' -- -1234
INSERT INTO @Test SELECT '$1234' -- NULL
INSERT INTO @Test SELECT '1234e10' -- NULL
INSERT INTO @Test SELECT '1234 5678' -- NULL
INSERT INTO @Test SELECT '123-456' -- NULL
INSERT INTO @Test SELECT '1234.5' -- NULL
INSERT INTO @Test SELECT '123456789000000' -- NULL
INSERT INTO @Test SELECT 'N/A' -- NULL
SELECT Value, dbo.TryConvertInt(Value) FROM @Test
Reference: I used this page extensively when creating my solution.
Some programs can't process output stream very well, using pipe to Out-Null
may not block it.
And Start-Process
needs the -ArgumentList
switch to pass arguments, not so convenient.
There is also another approach.
$exitCode = [Diagnostics.Process]::Start(<process>,<arguments>).WaitForExit(<timeout>)
Try this:
v=spf1 ip4:abc.de.fgh.ij ip4:klm.no.pqr.st ~all
You can also try git diff --word-diff
.
It's not exactly side-by-side, but somehow better, so you might prefer it to your actual side-by-side need.
inserting data form one table to another table in different DATABASE
insert into DocTypeGroup
Select DocGrp_Id,DocGrp_SubId,DocGrp_GroupName,DocGrp_PM,DocGrp_DocType
from Opendatasource( 'SQLOLEDB','Data Source=10.132.20.19;UserID=sa;Password=gchaturthi').dbIPFMCI.dbo.DocTypeGroup
Look at the Identity of the Application Pool that's running your application. By default it will be the Network Service account, but you can change this.
At least that's how it works on 2003 server, don't know if some details have changed for 2008 server.
In my case, it was caused by an unseen trailing space at the end of the column name. Just check if you really use "y" or "y " instead.
One way is to use re.sub, that's my preferred way.
import re
my_str = "hey th~!ere"
my_new_string = re.sub('[^a-zA-Z0-9 \n\.]', '', my_str)
print my_new_string
Output:
hey there
Another way is to use re.escape:
import string
import re
my_str = "hey th~!ere"
chars = re.escape(string.punctuation)
print re.sub(r'['+chars+']', '',my_str)
Output:
hey there
Just a small tip about parameters style in python by PEP-8 parameters should be remove_special_chars
and not removeSpecialChars
Also if you want to keep the spaces just change [^a-zA-Z0-9 \n\.]
to [^a-zA-Z0-9\n\.]
Yet another option is argh. It builds on argparse, and lets you write things like:
import argh
# declaring:
def echo(text):
"Returns given word as is."
return text
def greet(name, greeting='Hello'):
"Greets the user with given name. The greeting is customizable."
return greeting + ', ' + name
# assembling:
parser = argh.ArghParser()
parser.add_commands([echo, greet])
# dispatching:
if __name__ == '__main__':
parser.dispatch()
It will automatically generate help and so on, and you can use decorators to provide extra guidance on how the arg-parsing should work.
The dict.items
iterates over the key-value pairs of a dictionary. Therefore for key, value in dictionary.items()
will loop over each pair. This is documented information and you can check it out in the official web page, or even easier, open a python console and type help(dict.items)
. And now, just as an example:
>>> d = {'hello': 34, 'world': 2999}
>>> for key, value in d.items():
... print key, value
...
world 2999
hello 34
The AttributeError
is an exception thrown when an object does not have the attribute you tried to access. The class dict
does not have any predictors
attribute (now you know where to check it :) ), and therefore it complains when you try to access it. As easy as that.
I've found that UC Irvine has a great collection of python modules, pywin32 (win32api) being one of many listed there. I'm not sure how they do with keeping up with the latest versions of these modules but it hasn't let me down yet.
UC Irvine Python Extension Repository - http://www.lfd.uci.edu/~gohlke/pythonlibs
pywin32 module - http://www.lfd.uci.edu/~gohlke/pythonlibs/#pywin32
You can print to file and at the same time see progress having (or not) screen
, while running a R script.
When not using screen, use R CMD BATCH yourscript.R &
and step 4.
When using screen, in a terminal, start screen
screen
run your R script
R CMD BATCH yourscript.R
Go to another screen pressing CtrlA, then c
look at your output with (real-time):
tail -f yourscript.Rout
Switch among screens with CtrlA then n
Downloaded 64 bit JVM from site and installed it manually and updated the system path variable. That solved the issue.
First, it's always worth noting that git reset --hard
is a potentially dangerous command, since it throws away all your uncommitted changes. For safety, you should always check that the output of git status
is clean (that is, empty) before using it.
Initially you say the following:
So I know that Git tracks changes I make to my application, and it holds on to them until I commit the changes, but here's where I'm hung up:
That's incorrect. Git only records the state of the files when you stage them (with git add
) or when you create a commit. Once you've created a commit which has your project files in a particular state, they're very safe, but until then Git's not really "tracking changes" to your files. (for example, even if you do git add
to stage a new version of the file, that overwrites the previously staged version of that file in the staging area.)
In your question you then go on to ask the following:
When I want to revert to a previous commit I use: git reset --hard HEAD And git returns: HEAD is now at 820f417 micro
How do I then revert the files on my hard drive back to that previous commit?
If you do git reset --hard <SOME-COMMIT>
then Git will:
master
) back to point at <SOME-COMMIT>
.<SOME-COMMIT>
.HEAD
points to your current branch (or current commit), so all that git reset --hard HEAD
will do is to throw away any uncommitted changes you have.
So, suppose the good commit that you want to go back to is f414f31
. (You can find that via git log
or any history browser.) You then have a few different options depending on exactly what you want to do:
git reset --hard f414f31
. However, this is rewriting the history of your branch, so you should avoid it if you've shared this branch with anyone. Also, the commits you did after f414f31
will no longer be in the history of your master
branch.Create a new commit that represents exactly the same state of the project as f414f31
, but just adds that on to the history, so you don't lose any history. You can do that using the steps suggested in this answer - something like:
git reset --hard f414f31
git reset --soft HEAD@{1}
git commit -m "Reverting to the state of the project at f414f31"
You would first make a variable: for example: D = 1. Then Do This but replace the string with whatever you want:
D = 1
print("Here is a number!:",D)
// My Class Global Variables Save File Global.Java
public class Global {
public static int myVi;
public static String myVs;
}
// How to used on many Activity
Global.myVi = 12;
Global.myVs = "my number";
........
........
........
int i;
int s;
i = Global.myVi;
s = Global.myVs + " is " + Global.myVi;
We found that we got this error when there was a conflict in our build that showed up as a warning.
We did not get the detail until we increased the Visual Studio -> Tools -> Options -> Projects and Solutions -> Build and Run -> MSBuild project build output verbosity to Detailed.
Our project is a .net v4 web application and there was a conflict was between System.Net.Http (v2.0.0.0) and System.Net.Http (v4.0.0.0). Our project referenced the v2 version of the file from a package (included using nuget). When we removed the reference and added a reference to the v4 version then the build worked (without warnings) and the error was fixed.
Star in version (like "2.10.3.*") - it is simple, but the numbers are too large
AutoBuildVersion - looks great but its dont work on my VS2010.
@DrewChapin's script works, but I can not in my studio set different modes for Debug pre-build event and Release pre-build event.
so I changed the script a bit... commamd:
"%CommonProgramFiles(x86)%\microsoft shared\TextTemplating\10.0\TextTransform.exe" -a !!$(ConfigurationName)!1 "$(ProjectDir)Properties\AssemblyInfo.tt"
and script (this works to the "Debug" and "Release" configurations):
<#@ template debug="true" hostspecific="true" language="C#" #>
<#@ output extension=".cs" #>
<#@ assembly name="System.Windows.Forms" #>
<#@ import namespace="System.IO" #>
<#@ import namespace="System.Text.RegularExpressions" #>
<#
int incRevision = 1;
int incBuild = 1;
try { incRevision = Convert.ToInt32(this.Host.ResolveParameterValue("","","Debug"));} catch( Exception ) { incBuild=0; }
try { incBuild = Convert.ToInt32(this.Host.ResolveParameterValue("","","Release")); } catch( Exception ) { incRevision=0; }
try {
string currentDirectory = Path.GetDirectoryName(Host.TemplateFile);
string assemblyInfo = File.ReadAllText(Path.Combine(currentDirectory,"AssemblyInfo.cs"));
Regex pattern = new Regex("AssemblyVersion\\(\"\\d+\\.\\d+\\.(?<revision>\\d+)\\.(?<build>\\d+)\"\\)");
MatchCollection matches = pattern.Matches(assemblyInfo);
revision = Convert.ToInt32(matches[0].Groups["revision"].Value) + incRevision;
build = Convert.ToInt32(matches[0].Groups["build"].Value) + incBuild;
}
catch( Exception ) { }
#>
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("Game engine. Keys: F2 (Debug trace), F4 (Fullscreen), Shift+Arrows (Move view). ")]
[assembly: AssemblyProduct("Game engine")]
[assembly: AssemblyDescription("My engine for game")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyCopyright("Copyright © Name 2013")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
// Setting ComVisible to false makes the types in this assembly not visible
// to COM components. If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type. Only Windows
// assemblies support COM.
[assembly: ComVisible(false)]
// On Windows, the following GUID is for the ID of the typelib if this
// project is exposed to COM. On other platforms, it unique identifies the
// title storage container when deploying this assembly to the device.
[assembly: Guid("00000000-0000-0000-0000-000000000000")]
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
[assembly: AssemblyVersion("0.1.<#= this.revision #>.<#= this.build #>")]
[assembly: AssemblyFileVersion("0.1.<#= this.revision #>.<#= this.build #>")]
<#+
int revision = 0;
int build = 0;
#>
just override onCreateOptionsMenu like this in your MainPage.java
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main_menu, menu);
return true;
}
These are the rules of the C++ language:
12
) is a "rvalue"int &ri = 12;
is ill-formedYou have to understand that these are C++ rules. They just are.
It is easy to invent a different language, say C++', with slightly different rules. In C++', it would be permitted to create a non-const reference with a rvalue. There is nothing inconsistent or impossible here.
But it would allow some risky code where the programmer might not get what he intended, and C++ designers rightly decided to avoid that risk.
Other answers posted here for this question did not work for me using the latest Visual Studio 2017 Enterprise edition (as of 2018-09-18).
Instead, I used this method:
Once installed, close and restart Visual Studio. Go to File->New Project and search for the word Installer. You'll know you have the correct templates installed if you see a list that looks something like this:
If you're looking to do a simple round in Angular you can easily set the filter inside your expression. For example:
{{ val | number:0 }}
See this CodePen example & for other number filter options.
For sanity, you probably want to have all datetimes
calculated by your DB server, rather than the application server. Calculating the timestamp in the application can lead to problems because network latency is variable, clients experience slightly different clock drift, and different programming languages occasionally calculate time slightly differently.
SQLAlchemy allows you to do this by passing func.now()
or func.current_timestamp()
(they are aliases of each other) which tells the DB to calculate the timestamp itself.
server_default
Additionally, for a default where you're already telling the DB to calculate the value, it's generally better to use server_default
instead of default
. This tells SQLAlchemy to pass the default value as part of the CREATE TABLE
statement.
For example, if you write an ad hoc script against this table, using server_default
means you won't need to worry about manually adding a timestamp call to your script--the database will set it automatically.
onupdate
/server_onupdate
SQLAlchemy also supports onupdate
so that anytime the row is updated it inserts a new timestamp. Again, best to tell the DB to calculate the timestamp itself:
from sqlalchemy.sql import func
time_created = Column(DateTime(timezone=True), server_default=func.now())
time_updated = Column(DateTime(timezone=True), onupdate=func.now())
There is a server_onupdate
parameter, but unlike server_default
, it doesn't actually set anything serverside. It just tells SQLalchemy that your database will change the column when an update happens (perhaps you created a trigger on the column ), so SQLAlchemy will ask for the return value so it can update the corresponding object.
You might be surprised to notice that if you make a bunch of changes within a single transaction, they all have the same timestamp. That's because the SQL standard specifies that CURRENT_TIMESTAMP
returns values based on the start of the transaction.
PostgreSQL provides the non-SQL-standard statement_timestamp()
and clock_timestamp()
which do change within a transaction. Docs here: https://www.postgresql.org/docs/current/static/functions-datetime.html#FUNCTIONS-DATETIME-CURRENT
If you want to use UTC timestamps, a stub of implementation for func.utcnow()
is provided in SQLAlchemy documentation. You need to provide appropriate driver-specific functions on your own though.
Whenever a record has updated a record is "deleted". Here is my example:
ALTER TRIGGER [dbo].[UpdatePhyDate]
ON [dbo].[M_ContractDT1]
AFTER UPDATE
AS
BEGIN
-- on ContarctDT1 PhyQty is updated
-- I want system date in Phytate automatically saved
SET NOCOUNT ON;
declare @dt1ky as int
if(update(Phyqty))
begin
select @dt1ky = dt1ky from deleted
update M_ContractDT1 set PhyDate=GETDATE() where Dt1Ky= @dt1ky
end
END
It works fine
You can use .present? which comes included with ActiveSupport.
@city = @user.city.present?
# etc ...
You could even write it like this
def show
%w(city state bio contact twitter mail).each do |attr|
instance_variable_set "@#{attr}", @user[attr].present?
end
end
It's worth noting that if you want to test if something is blank, you can use .blank?
(this is the opposite of .present?
)
Also, don't use foo == nil
. Use foo.nil?
instead.
Why do you think your solution is "clunky"? Personally I would prefer one constructor with default values over multiple overloaded constructors in situations like yours (Python does not support method overloading anyway):
def __init__(self, num_holes=None):
if num_holes is None:
# Construct a gouda
else:
# custom cheese
# common initialization
For really complex cases with lots of different constructors, it might be cleaner to use different factory functions instead:
@classmethod
def create_gouda(cls):
c = Cheese()
# ...
return c
@classmethod
def create_cheddar(cls):
# ...
In your cheese example you might want to use a Gouda subclass of Cheese though...
Though there have been considerable advancements in Java's GC technology, you still need to be mindful of your references. Numerous cases of seemingly trivial reference patterns that are actually rats nests under the hood come to mind.
From your post it doesn't sound like you're trying to implement a reset method for the purpose of object reuse (true?). Are your objects holding any other type of resources that need to be cleaned up (i.e., streams that must be closed, any pooled or borrowed objects that must be returned)? If the only thing you're worried about is memory dealloc then I would reconsider my object structure and attempt to verify that my objects are self contained structures that will be cleaned up at GC time.
I know this question was originally asked before Laravel 5.0 was released, but as of Laravel 5.0, Collections support the where()
method for this purpose.
For Laravel 5.0, 5.1, and 5.2, the where()
method on the Collection
will only do an equals comparison. Also, it does a strict equals comparison (===
) by default. To do a loose comparison (==
), you can either pass false
as the third parameter or use the whereLoose()
method.
As of Laravel 5.3, the where()
method was expanded to work more like the where()
method for the query builder, which accepts an operator as the second parameter. Also like the query builder, the operator will default to an equals comparison if none is supplied. The default comparison was also switched from strict by default to loose by default. So, if you'd like a strict comparison, you can use whereStrict()
, or just use ===
as the operator for where()
.
Therefore, as of Laravel 5.0, the last code example in the question will work exactly as intended:
$foods = Food::all();
$green_foods = $foods->where('color', 'green'); // This will work. :)
// This will only work in Laravel 5.3+
$cheap_foods = $foods->where('price', '<', 5);
// Assuming "quantity" is an integer...
// This will not match any records in 5.0, 5.1, 5.2 due to the default strict comparison.
// This will match records just fine in 5.3+ due to the default loose comparison.
$dozen_foods = $foods->where('quantity', '12');
It basically is higher/greater in everything else. A keyboard is less of a priority than the real time process. This means the process will be taken into account faster then keyboard and if it can't handle that, then your keyboard is slowed.
I'm looking at this and thinking, if you can only get variables into php in a form, why not just make a form and put a hidden input in the thing so it doesn't show on screen, and then put the value from your javascript into the hidden input and POST that into the php? It would sure be a lot less hassle than some of this other stuff right?
Wouldn't:
z <- df[df$x > quantile(df$x, .25) - 1.5*IQR(df$x) &
df$x < quantile(df$x, .75) + 1.5*IQR(df$x), ] #rows
accomplish this task quite easily?
You can use round function just to suppress scientific notation for specific dataframe:
df1.round(4)
or you can suppress is globally by:
pd.options.display.float_format = '{:.4f}'.format
Well generally you shouldn't need to classify an element specified by id, because id is always unique, but if you really need to, the following should work:
div#content.sectionA {
/* ... */
}
// logout
if(isset($_GET['logout'])) {
session_destroy();
unset($_SESSION['username']);
header('location:login.php');
}
?>
You should remove the &
(ampersand) symbol, so that line 4 will look like this:
$conn = ADONewConnection($config['db_type']);
This is because ADONewConnection already returns an object by reference. As per documentation, assigning the result of a reference to object by reference results in an E_DEPRECATED message as of PHP 5.3.0
NODE_ENV is an environmental variable that stands for node environment in express server.
It's how we set and detect which environment we are in.
It's very common using production
and development
.
Set:
export NODE_ENV=production
Get:
You can get it using app.get('env')
Here is how I solved the same problem using the Oracle.DataAccess.Client
Namespace.
using Oracle.DataAccess.Client;
string strConnection = ConfigurationManager.ConnectionStrings["oConnection"].ConnectionString;
dataConnection = new OracleConnectionStringBuilder(strConnection);
OracleConnection oConnection = new OracleConnection(dataConnection.ToString());
oConnection.Open();
OracleCommand tmpCommand = oConnection.CreateCommand();
tmpCommand.Parameters.Add("user", OracleDbType.Varchar2, txtUser.Text, ParameterDirection.Input);
tmpCommand.CommandText = "SELECT USER, PASS FROM TB_USERS WHERE USER = :1";
try
{
OracleDataReader tmpReader = tmpCommand.ExecuteReader(CommandBehavior.SingleRow);
if (tmpReader.HasRows)
{
// PT: IMPLEMENTE SEU CÓDIGO
// ES: IMPLEMENTAR EL CÓDIGO
// EN: IMPLEMENT YOUR CODE
}
}
catch(Exception e)
{
// PT: IMPLEMENTE SEU CÓDIGO
// ES: IMPLEMENTAR EL CÓDIGO
// EN: IMPLEMENT YOUR CODE
}
Django 1.10 no longer allows you to specify views as a string (e.g. 'myapp.views.home'
) in your URL patterns.
The solution is to update your urls.py
to include the view callable. This means that you have to import the view in your urls.py
. If your URL patterns don't have names, then now is a good time to add one, because reversing with the dotted python path no longer works.
from django.conf.urls import include, url
from django.contrib.auth.views import login
from myapp.views import home, contact
urlpatterns = [
url(r'^$', home, name='home'),
url(r'^contact/$', contact, name='contact'),
url(r'^login/$', login, name='login'),
]
If there are many views, then importing them individually can be inconvenient. An alternative is to import the views module from your app.
from django.conf.urls import include, url
from django.contrib.auth import views as auth_views
from myapp import views as myapp_views
urlpatterns = [
url(r'^$', myapp_views.home, name='home'),
url(r'^contact/$', myapp_views.contact, name='contact'),
url(r'^login/$', auth_views.login, name='login'),
]
Note that we have used as myapp_views
and as auth_views
, which allows us to import the views.py
from multiple apps without them clashing.
See the Django URL dispatcher docs for more information about urlpatterns
.
Yes you can do it with simple JavaScript snippet:
document.addEventListener('mouseup', event => {
if(window.getSelection().toString().length){
let exactText = window.getSelection().toString();
}
}
You should not add to your list using c
inside the loop, because that can result in very very slow code. Basically when you do c(l, new_element)
, the whole contents of the list are copied. Instead of that, you need to access the elements of the list by index. If you know how long your list is going to be, it's best to initialise it to this size using l <- vector("list", N)
. If you don't you can initialise it to have length equal to some large number (e.g if you have an upper bound on the number of iterations) and then just pick the non-NULL elements after the loop has finished. Anyway, the basic point is that you should have an index to keep track of the list element and add using that eg
i <- 1
while(...) {
l[[i]] <- new_element
i <- i + 1
}
For more info have a look at Patrick Burns' The R Inferno (Chapter 2).
Change .text
to .textContent
to get/set the text content.
Or since you're dealing with a single text node, use .firstChild.data
in the same manner.
Also, let's make sensible use of a variable, and enjoy some code reduction and eliminate redundant DOM selection by caching the result of getElementById
.
function toggleText(button_id)
{
var el = document.getElementById(button_id);
if (el.firstChild.data == "Lock")
{
el.firstChild.data = "Unlock";
}
else
{
el.firstChild.data = "Lock";
}
}
Or even more compact like this:
function toggleText(button_id) {
var text = document.getElementById(button_id).firstChild;
text.data = text.data == "Lock" ? "Unlock" : "Lock";
}
Personally, I don't use gomock
(or any mocking framework for that matter; mocking in Go is very easy without it). I would either pass a dependency to the downloader()
function as a parameter, or I would make downloader()
a method on a type, and the type can hold the get_page
dependency:
get_page()
as a parameter of downloader()
type PageGetter func(url string) string
func downloader(pageGetterFunc PageGetter) {
// ...
content := pageGetterFunc(BASE_URL)
// ...
}
Main:
func get_page(url string) string { /* ... */ }
func main() {
downloader(get_page)
}
Test:
func mock_get_page(url string) string {
// mock your 'get_page()' function here
}
func TestDownloader(t *testing.T) {
downloader(mock_get_page)
}
download()
a method of a type Downloader
:If you don't want to pass the dependency as a parameter, you could also make get_page()
a member of a type, and make download()
a method of that type, which can then use get_page
:
type PageGetter func(url string) string
type Downloader struct {
get_page PageGetter
}
func NewDownloader(pg PageGetter) *Downloader {
return &Downloader{get_page: pg}
}
func (d *Downloader) download() {
//...
content := d.get_page(BASE_URL)
//...
}
Main:
func get_page(url string) string { /* ... */ }
func main() {
d := NewDownloader(get_page)
d.download()
}
Test:
func mock_get_page(url string) string {
// mock your 'get_page()' function here
}
func TestDownloader() {
d := NewDownloader(mock_get_page)
d.download()
}
For this case you can also sort using LINQ:
week = week.OrderBy(w => DateTime.Parse(w.date)).ToList();
I had a similar problem with é char... I think the comment "it's possible that the text you're feeding it isn't UTF-8" is probably close to the mark here. I have a feeling the default collation in my instance was something else until I realized and changed to utf8... problem is the data was already there, so not sure if it converted the data or not when i changed it, displays fine in mysql workbench. End result is that php will not json encode the data, just returns false. Doesn't matter what browser you use as its the server causing my issue, php will not parse the data to utf8 if this char is present. Like i say not sure if it is due to converting the schema to utf8 after data was present or just a php bug. In this case use json_encode(utf8_encode($string));
$("#name", '#form2').val("Hello World")
results = []
chunk_size = 10
while(array.length > 0){
results.push(array.splice(0, chunk_size))
}
Take the following folder structure
notice:
Now in the index.html.en
file you'll want to put the following markup
<p>
<span>src="check_mark.png"</span>
<img src="check_mark.png" />
<span>I'm purple because I'm referenced from this current directory</span>
</p>
<p>
<span>src="/check_mark.png"</span>
<img src="/check_mark.png" />
<span>I'm green because I'm referenced from the ROOT directory</span>
</p>
<p>
<span>src="subfolder/check_mark.png"</span>
<img src="subfolder/check_mark.png" />
<span>I'm yellow because I'm referenced from the child of this current directory</span>
</p>
<p>
<span>src="/subfolder/check_mark.png"</span>
<img src="/subfolder/check_mark.png" />
<span>I'm orange because I'm referenced from the child of the ROOT directory</span>
</p>
<p>
<span>src="../subfolder/check_mark.png"</span>
<img src="../subfolder/check_mark.png" />
<span>I'm purple because I'm referenced from the parent of this current directory</span>
</p>
<p>
<span>src="subfolder/subfolder/check_mark.png"</span>
<img src="subfolder/subfolder/check_mark.png" />
<span>I'm [broken] because there is no subfolder two children down from this current directory</span>
</p>
<p>
<span>src="/subfolder/subfolder/check_mark.png"</span>
<img src="/subfolder/subfolder/check_mark.png" />
<span>I'm purple because I'm referenced two children down from the ROOT directory</span>
</p>
Now if you load up the index.html.en
file located in the second subfolder
http://example.com/subfolder/subfolder/
This will be your output